Computing and recording machine.



W. H. MoPARLAND. GOMPUTING AND RECORDING MACHINE.

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Patented 0@ 12,1909.

& Q m a M QM, I I I I 1| 7 r m, Md 0 APPLICATION FILED NOV. 9, 1905.Patented Oct. 12, 1909.

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W. E. MQFARLAND. comru'rme AND nnconnme MACHINE.

APPLIOATIOH nun NOV. 9, 1905.

Patented 0013. 12, 1909.

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WILLIAM H. McFARLAND, OF EAST ORANGE, NEW JERSEY.

COMIUTING AND RECGRDING MACHINE.

assess.

Specification of Letters Patent.

Patented Oct. 12, race.

Application filed November 9, 1905. Serial No. 286,538.

To all 10. mm it may concern:

Be it known that I, lVILLL-ur McFAninxxn, a citizen of the UnitedStates, residing 111 East Orange, in the county of Essex and State ofXew Jersey, have invented certain new and useful Improvements inComputing and Recording .ilachines, of which the foi lowing is aspecification.

This invention relates to machines bv which numbers may be both addedand re corded or printed upon a slip of paper; In

such machines, itis usual to depress the kevs,

corresponding to the number to be added and then operate a mechanism foreffecting both the adding and the printing of such number: suchmechanism being usually driven by electric power or foot. or handpower.It sometimes happens that an error made in depressing the keys, anddetected whe the number is printed, and such error immediatelycorrected. by depressing the keys which would correspond to thecomplement of the erroneous number, the effect of this operationbeing'to bring the adding mechanism to the point. where it stood priorto the adding of the erroneous number. it

not desired, however, to print. this complementary number. and in suchcases, it has been the custom to insert a slip of paper between thetypes and the record strip, so that the. complemenlary number will beprinted on the inserted slip. which can then be withdrawn and thrownaway. it is also sometimes desired to use the n'iachine solely foradding without etlccting any printing what ever: and the object of myinvention is to make it practicable to use the machine for this purpose.as well as to avoid the necessity oi tomplementar v number just referredto. To tl'iese ends, I have contrived by means of a finger piece and asimple part connected thereto to silence the printing mechanism at will,during the adding operation; and I also contrive by the same means toprevent the usual line feeding movement of the record strip, so thatwhen an operator desires to correct a mistake by means of adding in acomplementary number, he may first operate the silencing key or button,and then add in the complementary number, and then return the silencingkey to normal position and proceed to add and write the correct number.

in the accompanying. drawings, Figures 1 and 2 read together form asectional elevainserting a slip of paper to receive the tion taken fromfront to rear of the well known Pike adding machine with myinrprovements applied thereto. In these figures, the parts are shown innormal positions. Fig. 3 is a view similar to Fig. 1, but showing theposition of certain parts at the completion of the initial stroke of thepower driven mechanism. Figs. 4 and 5 are front views of a key or buttonused for silencing the printing and paper feeding mechanisms; Fig. 4tshowing the key in idle position, and Fig. 5 showing it in workingposition 'a portion of the frairework of the machine being shown insection. Fig. 6 is a front elevation partly in section illustrating themeans where by said key silences the printing and adding mechanisms; thepartsbeing shown in normal positions. Fig. 7 shows in working positionthe key seen at' Fig. (3.

Keys I mounted on stems 2 are held up in normal position by springs 3,the stems having formed on their lower ends stopsi, the latter servingto position the adding and printing or recording devices substantiallyin the manner shown in patent to \V. H. Pike, Jr., No. 763,692.

\Vhen the keys for a given number have been depressed, a trip 8 seen atthe rear of Fig. l is lifted by the operator from a recess formed in adisk 5) fixed upon a shaft 10,

which by means of a suitable clutch tends constantly to rotate. By meansof a single rotation of said shaftthe number which has been selected bythe keys is both added and recorded. and thereupon said shaftis againarrested by the trip 5 A. pitman 11 extends from the disk 9 to anoperating arm 12 depending from a rock shaft 13 journaled in the sidesof the machine frame, so that said shaft is caused to rock firstrearwardly and then forwardly during each revolution of the shaft 10. Atthe initial or rearward rocking of said arm 12 and shaft 13, theoperation of the adding and printing mechanism is effected, and at thereturn movement of said shaft the parts are restored to normalposition.

The adding and recording mecha...sm includes a set of bars or devices14:, one for each denomination, lying side by side and extending fromfront to rear of the machine; these bars 14 being normally in theirrearmost positions, but when released" being. drawn forward by springs15 to positions de termined by the depressed stops 4 on the keys. Eachof said adding devic 1d carries a set of stops 16 to engage the soi s4.; said stops 16 corresponding in function and location to the stopsshown in said patient for this purpose.

At their rear ends, the adding bars or devices 1 1 are pivoted to thelower ends of arms 26 depending from a transverse horizontal shaft 27and rigidly connected to type earrie s 28. The arms 26 are held back bymeans of a horizontal universal bar 29 upon arms 30 mounted on saidshaft 27. This universal bar 29 is controlled by the main power shaft13; a rearwardly extending cam 31 being fixed upon the latter andengaging a roll 32 provided upon the arms 30. During about the middleportion of the initial movement of said rock shaft 13 said roll 32 ridesforwardly along an incline 33 formed. upon said cam (being drawn back bysprings 34) thus releasing the bars 14;, which are drawn forwardly bythe springs 15 as far as permitted by the stops 1 on the keys, thelatter'being engaged by the stops 16 on the bars 14. Where no ke hasbeen depressed in a file, the bar 1 1 or that file remains in normalposition with a stop 35 resting against a toe 36 formed upon the bottomof an arm 37.

The printing is eflected during the terminal portion of the initialstroke of the main rock'shait 13 by means of an arm 60, Fig. 1,extending back from said shaft and having a wrist 81 engaging a slot 62formed in the lower end of a link 63. During nearly all of the upwardstroke of the arm 60 said wrist travels idly in the slot 62; but finallythe wrist reaches the upper end of the slot and lifts the link 63,thereby vibra-tin a lever 64:, Fig. 1, and moving it upon its 111].-crum 65 to the Fi 3 position. As set forth in said patent sai lever 64is one of a pair ofleversbetween which is mounted a series of hooks 66catching over lips 67 formed on trips68, whereby said trips are pulledback to the Fig. 3 position, thereby releasing the hammers 69 whichstrike types 70, and cause them to make impressions upon thepaper rolledaround the platen 71. At this time the type carriers 28 stand indifferent ositions corresponding with the positions 0 the bars 14 whichhave been arrested by the depressed stops 4 and detained by the pawl 40;and hence those types are imprinted upon the paper which correspond tothe pre viously depressed keys. During the final half of the revolutionof the shaft 10, the return movement of the rock shaft 13 is effected,and the cam 31, acting upon the roll 32, throws back the universal bar29, thereby restoring the type carriers to normal positions, as well asthe bars 14, the latter having upon their forward ends racks 72, Fig. 2,to cooperate during their return strokes with pinions 73, to add thenumber assess just printed; the result showing upon a series of numberwheels 74, as set forth in said patent.

The type hammers 69 which extend in a row transversely of the machine,are turned simultaneously to normal positions by means of a horizontaltransverse bar common or universal to all of said hammers. Said bar ismounted rigidly upon the upper ends of a pair of levers 76, which arefulcrumed upon a shaft 7 7 mounted in a framework seen at 78, 79, Fig.6. Said levers have arms 76 extending below said fulcrum and joined attheir lower ends by a cross bar 80, whereby the levers may be rocked tolift the type hammers 69.

A spring 81 tends constantly to pull the arms 7 6 and the universal bar75 away from the type hammers 69, but this movement is prevented bymeans of an arm 82. which is fixed to said rock shaft 13. TW hen,however, said rock shaft is vibrated from the Fig. 1 to the Fig. 3position, the arm 82 rocks forwardly so that the spring 81 may pull theuniversal bar 75 down, and hence permit the hammers to strike, upontheir being released by the trips 68. During the return movement of therock shaft 13 to normal position, the arm 82,. acting upon the barforces the levers 76 back to normal position together with the universalbar 75 and the type hammers 69.

I mount partly in the framework 78 and partly in a portion of the casing83, a finger piece or button 84 having a stem journaled for a turningmovement in each of said parts 83 and 78, and also capable of axialmovement. Normally this button 84 is idle, but it may be pressed in fromthe F ig. 6 to the Fig. 7 position, so that the inner end of the stem 85sets across the arm 7 6 of the adjacent lever 76 in position to preventany movement of said lever from normal position, Figs. 1, 5 and 7.Thereby said levers and hammers are prevented from acting, so that theprinting mechanism is efliectually silenced even though the typecarriers 28 are moved to diiterent working positions. It will beunderstood that the arm 82 may move idly from the Fig. 1 to the Fig. 3position and back again, while the member 80 remains stationary, becauseof the restraint put by the stem or stop 85 upon the levers 76 which arerigidly connected. A spring 86 coiled about the stem 85 serves to returnthe button to normal position when released.

The button 84 may be retained in working position by means of a lock pin87 prpjecting from thestem 85, Fig. 5; said pin 87 bearing against aboss 88 fixed in the framework 78 and forming a bearing for the stemSaid in 87 normally occupies a slot 89 formed in said boss; but when thebutton is pushed in, said pin emerges from the slot and the button maythen be rotated, so that a correction in the adding,

trolling the same,

the pin 87 may lock the device in working position. tv'tops 90 may beprovided upon the boss to limit the turning movement of the button.'lhus when it is desired to make it is only necessary to press in thebutton or key 8i during the'opcration of the power driven mechanism; andif it is desired to add a series of numbers without printing, the buttonafter being pressed in may be turned and locked, thus leaving both endsfree to manipulate the keys.

A; strip of. paper 91 which is passed around the platen to receive thetype impressions, is fed line by line after each printing operationsubstantially in the manner set forth in said patent; said feedingmechanism comprising a link 92 extending from the cross bar 80 to alever 93, which at one end engages another lever 94, the latter carryinga pawl 95 to act upon a tooth wheel 96, which by means of an idle wheel97 is connected to a tooth wheel 98 rigid with the platen 71. It will beseen that under normal conditions, theinitial stroke of the line feedingmechanism is effected by the spring 81, aided by a spring 99, which isattached to the lever 94:;but when the button 8% is pressed in, themovement of the bar 80 and hence of the link 92 is prevented, so thatthe paper feeding mechanismis also silenced. Thus when the silencing keyis used, there is neither a type impression made upon the paper, nor isthe paper fed, so that the next written line may fall in its place uponthe paper strip 91, the same as if an error had not been made; while itis an advantage to be able to use the machine, simply for adding withoutmaking type impressions or feeding the paper.

Many variations may be resorted to within the scope of the invention inapplying the same to the Pike and other adding or computing machines;and portions of my improvements may be used without others.

The Pike and other machines are constructed so that before theinunber-whecls.

can be set to zero, for beginning a new column, or in other words beforethe footing can be thrown out, is necessary to printsaid footing on thepaper; but the provision of the silencing lfey enables the footing to bethrown out, or the machine to be cleared for a new column, the paper.

Having thus described my invention, I claim:

1. In an adding and printing machine, the combination with an addingmechanism and a printing mechanism opcratively connected thereto, of afinger piece mounted for turning and axial movements; said printingmechanism including a series of )rinting devices and a universal membertor consaid finger piece having without printing the total on I a partwhich by an axial movement is set into the path of said universal memberso as to prevent operation thereof, and said finger piece being alsoprovided with a part which by a turning movement is caused to detainsaid fingerpiece in working position.

2. In an adding and printing machine, the combination with an addingmechanism and a printing mechanism operatively connected thereto, of afinger piece mounted for turning and axial movements; said printingmechanism including a serles of prmting devices and a universal memberfor controlling the same, said finger piece having a part which by anaxial movement is set into the path of said universal member so as toprevent operation thereof, and said finger piece being also providedwith a part which by a turning movement is caused to detain said fingerpiece in working position; and a stop for limiting the turning movementof said finger piece.

3. In an adding and printing machine, the combination with a series ofadding devices and a series of printing devicesoperatively associatedtherewith, of a power driven mechanism for operating said adding andprinting devices and including a member common or universal to all ofsaid printing devices for returning them to normal posi- 5 tions,'aspring being provided for moving said universal member away from normalposition to permit the operation of said printing devices; and anormally idle part movable at will to prevent the movement of 100 saiduniversal member from normal position at the operation of said powerdriven mechanismf i. In an adding and printing machine, the combinationwith a series of adding devices and a series of printing devices, of amember common or universal to'the printing devices,

a finger piece which may be operated to prevent the movement of saiduniversal member,

and power driven means for operating said adding devices either with orwithout said printing devices.

5. In an adding and printing machine, the combination with a series ofaddin devices and a series of printing devices, 0? a member common oruniversal to the printing devices, a finger piece which may be operatedto prevent the movement of said universal member, and power driven meansfor operating said adding devices either with or without said printingdevices; and means for detaining said finger piece in operativeposition. v

6. In an adding and printing machine, the combination with a series ofadding devices and a series of printing devices operatively associatedtherewith, of a power driven mechanism for operating said adding andprinting devices and including a member common or universal to all ofsaid printing printing devlces; and a normally idle part 4. esegeeedevices for returning them 0 normal poanism; and 3 paper feeding deviceconsitions, a spring being provided for moving nected' to sand universalmember so as to be 1C seld umversal member away from normal sllencedtherewlth.

position to permit the operation of said WILLI H MGFARLAND movable atwill to grevent the movement of Witnesses: Slld umversal mem er fromnormal posltlon B. C. STICKNEY, at the operatlon of saldpower dnvenmech- :KITTIE FRANKFORT.

